This reference provides the dimensional and weight data used to identify 2 Inch Schedule 80S stainless steel pipe, also known as NPS 2 and DN50. Use the values below when reviewing piping layouts, material take-offs, fabrication drawings, and procurement documents.
For practical coordination, compare the pipe dimensions with the selected stainless steel fittings, flanges, valves, gaskets, and supports. Nominal size labels help organize piping documents, but the listed outside diameter, inside diameter, wall thickness, and weight should control dimensional checks.
Schedule 80S Pipe 2 Inch (DN50) is a stainless steel pipe size commonly used in industrial piping systems where corrosion resistance, dimensional consistency, and dependable wall thickness are important. Based on the current page data under ANSI/ASME B36.19, this pipe size has an outside diameter of 60.3 mm, an inside diameter of 49.22 mm, a wall thickness of 5.54 mm, and a pipe weight of 7.48 kg/m.
2 Inch Schedule 80S Pipe Dimensions
The following values are listed for NPS 2 Schedule 80S pipe, which corresponds to DN50 in metric designation.
- Pipe Size: NPS 2 Inch
- DN Size: DN50
- Outside Diameter (OD): 60.3 mm
- Inside Diameter (ID): 49.22 mm
- Wall Thickness: 5.54 mm
- Pipe Weight: 7.48 kg/m
- Pipe Weight Including Water: 9.38 kg/m
- Reference Standard: ANSI/ASME B36.19
Schedule 80S Pipe 2 Inch (DN50) Data Table
| Pipe Schedule | NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| 80S | 2 Inch | 50 | 60.3 | 49.22 | 5.54 | 7.48 |
What Is Schedule 80S Pipe?
Schedule 80S is a stainless steel pipe schedule designation commonly used under ASME B36.19. In piping design and fabrication, the schedule identifies the wall thickness series for a given nominal pipe size. This helps engineers, buyers, and fabricators confirm dimensional compatibility, estimate pipe weight, and coordinate with fittings, flanges, and supports.
Common Uses of 2 Inch Schedule 80S Pipe
2 inch Schedule 80S pipe is commonly used in stainless steel piping systems that require good corrosion resistance, dependable wall thickness, and reliable flow capacity. This size is often selected for industrial projects where standard dimensions are needed for design, fabrication, procurement, and installation work.
- Process piping systems in chemical and industrial plants
- Water transmission lines for industrial and utility service
- Cooling water and utility piping in plant facilities
- Marine and offshore piping where stainless steel is preferred
- Food and beverage plants requiring corrosion-resistant piping materials
- Pharmaceutical facilities using stainless steel process lines
- Pump suction and discharge piping for process and utility systems
- Pipeline modification and replacement work where standard pipe dimensions are required
In practical engineering work, this pipe size may be checked when reviewing flow area, piping layout, support loading, transport weight, and installation requirements. Final pipe selection should always be verified against project pressure, temperature, fluid type, and material specifications.
Why OD, ID, Thickness, and Weight Matter
Exact OD, ID, wall thickness, and weight values are important for pipe support design, material take-off, transport planning, welding preparation, and installation work. Weight data is also useful for lifting calculations and total piping load estimates, while inside diameter affects flow calculations and system capacity review.
NPS 2 and DN50 Explained
NPS means nominal pipe size in inch units, while DN means diameter nominal in metric units. The current page identifies this pipe as NPS 2 and DN50, which is the standard naming format widely used in piping drawings, isometrics, and procurement specifications.
Conclusion
Schedule 80S Pipe 2 Inch (DN50) is listed on the current page with 60.3 mm OD, 49.22 mm ID, 5.54 mm wall thickness, and 7.48 kg/m weight. It is a useful stainless steel pipe reference for piping engineers, designers, and buyers who need standard dimensional and weight data for project planning and material selection.
How to Use This Schedule 80S Pipe Reference
The table and dimension list are useful during several stages of a piping project. Designers can check available flow space and layout clearances, while fabricators can use the dimensional information to coordinate weld preparations and connections. Estimators and buyers can use the weight value for material take-offs, handling plans, and shipping reviews.
- Layout review: Check the outside diameter against clamps, penetrations, insulation allowances, and nearby equipment.
- Flow review: Use the inside diameter as an input for project-specific flow, velocity, and pressure-loss calculations.
- Support review: Consider the listed pipe weight together with contents, insulation, valves, fittings, and support spacing established by the project.
- Fabrication review: Confirm that fittings and flanges use compatible nominal size and dimensional requirements.
- Procurement review: Match the schedule designation with the material, manufacturing, testing, and documentation requirements in the purchase specification.
Schedule Designation Versus Pressure Rating
A schedule identifies a wall-thickness series for a nominal pipe size; it is not, by itself, a complete pressure rating. Pressure and temperature suitability depend on the pipe material, design conditions, joining method, corrosion allowance where applicable, governing code, and project specification. The listed dimensions should therefore be used as a dimensional reference rather than as approval for a particular service.
Related Piping References to Check
This entry is most useful when reviewed alongside related pipe schedule charts, stainless steel pipe dimensions, flange dimensions, butt-weld fitting references, and piping terminology guides. Those references help clarify how NPS and DN designations appear on isometric drawings, bills of materials, CAD details, and procurement schedules.
When preparing a drawing or model, also verify the connection type, material grade, end preparation, flange class, and applicable project standards. These details are separate from the dimensional schedule information presented here.
Frequently Asked Questions
What does Schedule 80S mean?
Schedule 80S is a stainless steel pipe wall-thickness designation used with the dimensional reference identified on this page. It helps users coordinate pipe dimensions with fittings, flanges, supports, drawings, and procurement documents.
Is NPS 2 the same designation as DN50?
This page identifies the pipe as both NPS 2 and DN50. These are nominal size designations used in inch-based and metric-oriented piping documentation; they are not a direct statement of the measured inside diameter.
Does Schedule 80S specify the stainless steel grade?
No. The schedule identifies the dimensional wall-thickness series, while the stainless steel grade must be confirmed from the material specification, purchase documents, and project requirements.
Can the listed weight be used for support design?
The listed pipe weight is a useful starting point for estimating pipe self-weight. Support design should also account for contents, fittings, valves, insulation, operating conditions, support arrangement, and the requirements of the responsible engineer.
Can the listed inside diameter be used for flow calculations?
It can serve as a dimensional input for a project-specific flow review. Final calculations should also consider the fluid, operating conditions, roughness assumptions, fittings, valves, allowable velocity, and applicable design criteria.
What should be checked before ordering this pipe?
Confirm the nominal size, schedule, outside diameter, wall thickness, material grade, length, end preparation, manufacturing requirements, inspection documents, and compatibility with the specified fittings and flanges.